Math, asked by debasisdasbarasat, 5 months ago

cotA / ( cosecA+1) + ( cosecA+1) / cotA = 2secA​

Answers

Answered by sandy1816
0

cotA/(cosecA+1) + (cosecA+1)/cotA

=cot²A+(cosecA+1)²/cotA(cosecA+1)

=(cot²A+cosec²A+1+2cosecA)/cotA(cosecA+1)

=(2cosec²A+2cosecA)/cotA(cosecA+1)

=2cosecA(cosecA+1)/cotA(cosecA+1)

=2cosecA/cotA

=2secA

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